Printing apparatus.



R. HERMAN. PRINTING APPARATUS.

APPLICATION FILED MAR. 28. 1903.

N0 MODEL.

IIIIIIIIIIIIIIIIIIIHI PATENTED Nov. s, 190s.

2 SHEETS-SHEET l.

im m# 2 SHEETS*-SEEET 2.

PATRNTRD NOV.l s, 1903.

R. HERMAN.

PRINTING APPARATUS.

APPLICATION FILED MAR. 28. 1903.

Nol 743,160.

No MODEL.

UNITED STATES Patented November 3, i983.

PATENT OFFICE.

PRINTING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 743,160, dated November 3, 1903.

Application filed March 28,1903. Serial No. 149,925. (No model.)

31"@ all whom, t may concern:

Be it known that I, REINHOLD HERMAN, a citizen of the United States of America, residing at Grafton, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Printing Apparatus, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to certain new and useful improvements in printing apparatus, and relates more particularly to devices adapted for the reproduction of negatives by the aid of artificial light-such, for instance, as electric light.

The invention has for its object the construction of a machine or apparatus having a printing-cylinder adapted to support the negatives to be reproduced, a lamp mounted stationary in said cylinder, with means to automatically extinguish the light of said lamp at a predetermined time, together with means for regulating or controlling the extinguishing of said lamp.

Heretofore and before my invention it has been the practice to employ a transparent cylinder into which a lamp (generally an electric lamp) is lowered, and when the lamp in its descent reaches a predetermined point a switch or other cut-out automatically operates to out out the light. The lamp is then returned to its normal or elevated position above the cylinder in order that the negatives may be removed and others placed in position on the cylinder. An invention of this principle is involved in my application, tiled October 1,1901,Serial No. 77,192,and also in my prior patent, issued February 17, 1903, No. 721,011. In this'patent referred to, however,whilelemployavertically-movablelamp, the latter is adapted to be returned to its elevated or normal position before the current is cutoff from the lamp. In my present invention, however, while I employ a glass or other transparent cylinder and preferably mount the same on trunnions, so that the same may be revolved in order to facilitate the placing and removal of the negatives on and from the cylinder, I dispense with the movable lamp and mount the lamp stationary in the cylinder, the only movement im parted to the same being that of uniform 'movement with the cylinder when the latter is revolved either to place negatives thereon or remove same from the cylinder.

The present invention also contemplates otherimprovements in the art of reproducing drawings, photographs, printed matter, Jac., by the aid of articial light, and these, together with the improvements enumerated, will be hereinafter more specifically described and then particularly pointed out in the appended claims, and in describing the invention in detail reference will be had to the accompanying drawings, forming a part of this application,and wherein like numerals of reference will be employed for indicating like parts throughout the different views of the drawings, in which- Figure 1 is a side elevation of myimproved printing apparatus with the printing cylinder or frame in the upright orprinting position. Fig. 2 is a side elevation of the same, showing the circuit from the motor to the lamp. Fig. 3 is an enlarged central vertical sectional View of the rotary circuit-connector, showing the lamp in side elevation and in diagram the circuit from the motor through the lamp, the automatic switch being removed. Fig. 4t is a side elevation of the cutout, it-s support-board, the lamp, and the circuit therewith with the rotary circuit-connector removed and showing the dash-potin central vertical section. Fig. 5 is atop plan view of the printing frame or cylinder. Fig. 6 is a detail perspective View of portions of the lamp and the securing means therefor. Fig. 7 is a vertical sectional view of the supporting-board for the counterbalance-weight attached to the plu n ger-rod,showing a portion of said rod and the rewinding mechanism therefor in side elevation.

In my present invention I prefer to mount transparent cylindrical printing-frame 1 in such a manner that the same may be revolved whereby it may be placed horizontally in order to facilitate the placing of the negatives or other matter thereon and the removal of the same therefrom after printing. However, it is to be noted thatin connection with my present invention, which involves the mounting of a lamp stationaryin the cylinder, that this cylinder or printing-frame could be made non-rotatable-that is,adapted ICO to remain in the vertical position at alltimes. Twill, however, describe the same in connection with a means for rotating the cylinder, which is the preferred form of construction, and to accomplish this I provide a pair of standards or uprights 2, connected together by tie-rod 3, and in bearings 4 4 at the upper end of which are mounted trunnions 5 5, which carry angle-bar clamps 6, adapted to engage with the angle-bar uprights 7, which supportthecylindricalprinting-frame. This cylindrical printing-frame is provided with suitable means for clamping the negative or other matter in position on the cylinder or frame for reproduction, this means embodying an apron adapted to be wrapped around the printing-frame after the mattei' to be reproduced has been placed thereon. The manner of securing this apron to the printing cylinder or frame and the manner of fastening the same were fully shown and described in my Letters Patent No. 721,041, heretofore referred to, and has hence not been shown in this application in detail, as the same form of construction illustrated and claimed in said patent is preferably employed by me in connection with the present device. Mounted in the cylinder orprinting-frame centrally thereof is a printing-lamp, preferably of the vapor-,lamp form, and this lamp extends the length of the printing-cylinder or the length of so much of the cylinder as is employed for the printing-surface. The lamp Sis provided with a neck 9 at each end, on which is placed a sleeve or collar of insulation 10. The insulated sleeve or collar 10 tits in a seat 11, provided therefor in the cross-bar 12, afliXed to the end rings 14 of the support for the cylindrical printing frame or cylinder, the crossbar 2 at each end of the cylinder carrying segmental-shaped iianges 15 to receive the flange 1b', carried by the collar 17, which fits over the flange 15 and over the insulated neck of the lamp and is fastened by set-screw 13 or other suitable means. Binding-posts 19 2O are in the respective ends of the lamp forsecuring the circuit-wires, as will be hereinafter more fully described and pointed out. The trunnion 5 is provided with a bar 21 therethrough to receive the circuit-wires, and this trunnion 5 is extended some distance beyond the bearing 4', (see Fig. 3,) and on this extended portion of the trunnion is mounted the brass or like bushing 22, secured in position by screws 23 passing through the integral collar 24 at the inner end of said sleeve 22. Mounted on this bushing 22 is an insulated sleeve 25, and on said insulated sleeve 25 are mounted the contact-rings 26 27, which are suitably spaced apart and are insulated from each other by the insulated sleeve 25 and are also insulated from the trunnion or bearing by,v insulation-washers 2S. These contact-rings and the insulation-washers are secured in position by means of the washer 29, which is placed against the opposite washer 2S and held by jam nut 30, threaded onto the end of the bushing or sleeve The bearing 4 carries an arm or extension 31, in which is mounted a stud or post 32, securely held by jam-nuts at each side of the arm or extension 31. This stud or post 32 has mounted thereon a brass or other bushing or sleeve 33, on which is placed the insulated sleeve 34, and mounted on this insulated sleeve 34 are the clips 35 36, respectively, for engagement with the contact-rings 26 27. These parts are held on the stud or post 32 by means of the jam-nut 37. This construction just described constitutes a rotary circuit-connector for the purpose of allowing the cylinder, lamp, and wires thereof to be rotated without the breaking of the conductors. f Attached to the standard 2, carrying the bearings 4-, is the insulation-base 33, on which the cut-out or switch for extinguishing the lamp ata predetermined time is mounted. This cut-out or switch is of the saine form of consiruction as that shown and described in detail in my priorpatent, No. 721,041, embodying a binding post 39 with fuse 40, connecting with spring-clip 41 to forma contact through the sector -shaped knife 42 with spring-clip 43. The knife 42 is secured to insulation-disk 44, carried on the brass trunnion 45. This brass trunnion 45 revolves in a bushing (not shown) which is fastened to the insulated base 33. To this trunnion 45 is secured a lever 46, attached thereto by means of screws or in any other suitable manner. On the insulated base 33 there is also fastened a stud 47, to which is secured one end of the spring 4S, the other end of said spring being connected to the lever 4G near its free end. Attached to this lever 46 at the outer vor free end thereof is a cord, chain, or other suitable device 49 for the purpose of operating the lever so as to actuate the trunnion 45 and cause the notch 50 in said trunnion to be engaged by the pawl 51, carried on the end of the trip-lever 52, pivot-ally mounted on the insulated base and provided at its outer end with an eye 53 to receive thevertically-movable rack-bar 54. This rack-bar 54 is preferably made in the form of a tube and is extended into a dash-pot cylinder 55, being provided at its lower end with a valve-seat 56. Threaded onto the tube within the cylinder 55 is a plunger 57, having ports 58, and on which plunger rests the valve 59 for normally closing said ports. This cylinder 55 is allixed to the standard 2 by means of straps 60 or by any other suitable means and is adapted to receive a liquid, preferably oil. The tube formingthe rack-bar 54 is extended through a suitable stuffing-box 61, and through this tube is extended a valve-rod 62, provided on its lower end with a valve 63 to engage with the seat 56. The hollow tube 54, which forms the plunger-rod or piston-rod,is provided with ports 64 above the vertically-movable valve 5S. The valve-rod 62 is provided at its upper end with a head 65, located within the open frame 66, to which the upperend of the IGC IIO

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rack-bar 54 is connected. This frame 66 is also attached to a cord, chain, cable, or like connection 67, which passes over the pulley 68, journaled in brackets 69 on the front face of the supporting base or board 70, near the upper end thereof, and over a pulley 7l, journaled in brackets 72 on the rear face of said supporting-board 70, at the upper end thereof, and carries a counterbalance-weight '73. Attached to this supporting board or base 70, on the front face thereof, is a pair of brackets 74, in which is journaled the pinion to engage with the rack 76 of the combined rackbar and plunger-rod 54. One end of the shaft on which the pinion 75 is mounted'is adapted to receive a crank 77 for returning the plunger and rack-bar to its elevated normal position, where it is held by means of a pawl 78 and ratchet-wheel 79, the pawl being carried by one of the brackets 74 and the ratchetwheel being mounted on the shaft which carries the pinion 75.

Thetrip-lever 52 is actuated at a predetermined time whereby to disengage the pawl 5l thereof from engagement with notch 50 of bushing 45, whereby spring 48 will operate lever 46, bushing 45, and knife 42 by means of an adjustable trip or stop 80, carried by the hollow plunger-rod forming the rack-bar 54. The knife 42 is limited in its movement in the direction in which it is moved by spring 48 by a stop 8l, carried by the insulationbase 38.

To describe the circuit, reference will be had particularly to Fig. 3 of the drawings, in which, in connection with the sectional View of the rotary circuit-connector, there is shown a diagrammatical view of the circuit from the motor to the switch or cut-out, over the rotary circuit-connector,through the lamp, and back to the motor. Vith the switch or cut-out in the closed position-that is, with the knife 42 in engagement with clips 4l 43-the circuit would be as follows: from the motor 82, over conductor 83, to binding-post 39 on the insulation-base 38, over fuse-wire 40, to springclip `41, over knife 42, to spring-clip 43, over conductor 84, to clips 35 of the rotary circuitconnector, from said clips 35, over contactring 27 of the rotary circuit-connector to conductor 85, attached to said contact-ring. This conductor is passed through an opening 8G, provided therefor in the contact-ring 26, the walls of which opening are insulated, said cond uctor being then carried through the bore 2l in the trunnion 5 and connected to binding-post 2O of the lamp 8. The-circuit is thence through the lamp to binding-post 19 on the other end thereof, and by conductor 87 from said binding-post 19, through the hollow trunnion 5' to the contact-ring 26, across spring-clips 36 and over conductor 88, to motor 82.

I will now describe brieiiy the operation of the device when the parts are assembled as shown in the accompanying drawings and as heretofore described. The cylinder or printing-frame is placed in a substantially horizontal position, where it may be locked by a suitable locking device 89. (Shown and described in'detail in my Patent No. 721,041.) The negative or matter to be reproduced is then placed on the cylinder, where it is secured by means of the binding-apron carried by cylinder or printing-frame. The cylinder or printing-frame is then returned to its vertical position and the cord, chain, or other connection pulled downwardly, which rotates bushing 45, whereby to throw knife 42 into engagement with clip 4l, and thereby completing the circuit through the lamp, as heretofore described. NVhen lever 46 is pulled downwardly, pawl 5l of the trip-lever 52 engages in notch 50 of the bushing 45 to hold the knife 42 in engagement with clip 41 to maintain the circuit. The pawl 78 being' released from ratchet 7S), counterweight 73 moves downwardly, drawing piston 57 upwardly, the liquid contained in cylinder 55 above the piston 57 feeding through ports 64 and out through the hollow piston-rod at the lower end thereof in proportion according to the amount that the valve 63 has been opened to permit. On the ascent of the hollow plunger-rod the stop engages with the trip-lever 52, elevating the outer end of said lever, whereby to disengage pawl 5l thereof from engagement with notch 50 in bushing 45, which allows' spring 48 to actuate lever 46 and partially rotate bushing 45, throwing knife 42 out of engagement with clip 4l and breaking the circuit to extinguish the light. The counterweight is returned to its normal position by means of crank 77, the elevating of the counterweight moving the hollow plunger-rod and rack-bar downward, this descent of the plunger 57 being permitted by reason of the valve 59 rising under the pressure of the liquid, so as to permit the latter to flow upwardly through ports 58 into the upper part of the cylinder 55.

It is to be noted that stop 80, being adjustable on the hollow plunger-rod and rackbar, may be so positioned as to out out the light at any time desired, giving a range of from a few seconds up to any number of minutes that may be required, according to the nature of the work that is being reproduced.

Although I have shown and described the stationary lamp in connection with a rotatable cylinder, as I prefer this form of mounting the cylinder, owing to the convenience obtained thereby for the placing of the mattei' to be reproduced in position on the cylinder and the removal therefrom of the same, yet I do not wish to limit myself to the employment of a rotatable cylinder in connection with a stationary lamp, as it will be observed that the same circuit, as herein shown and described, may be employed with a cylinder or printing-frame adapted to remain in the vertical position or with a cylinder mounted IOO stationary in a horizontal position or other position of the cylinder, as might be required, according to the particular location in which it was desired to place the machine.

It is also to be noted that While I have herein shown and described a preferred form of construction in connection with the rotatable circuitconnector, the switch mechanism, the controlling mechanism, and in other details, yet I do not wish to confine myself to the specie construction shown and described, as it will be apparent that various changes may be made in the details of construction without departing from the general spirit of the invention.

I-Iaving fully described my invention, what I claim as my invention, and desire to secure by Letters Patent, is-

l. In combination with a transparent printing-cylinder, a lamp mounted in said cylinder, an electrical circuit in connection with said lamp, and means for automatically breaking said circuit atapredetermined time, substantially as described.

2. In combination witharotatable printingcylinder, alamp mounted within the cylinder, and rotatable in unison therewith, an electrical circuit in connection with said lamp, and means for automatically breaking said circuit at a predetermined time.

3. In combination with a printing-cylinder, a printing-lamp mounted within the cylinder and movable in unison therewith.

4. In a printing apparatus, a trunnioned printing-cylinder,and lamp-holding means on the ends of said cylinder, in combination with a lamp extending the length of the cylinder Within the same and secured in said holding means.

5. In a printing apparatus, a trunnioned printing-cylinder rotatable endwise in its trunnions, and a printing-lamp removably mounted within the cylinder and remaining stationary therein during the printing operation.

6. In a printing apparatus, a transparent printing-cylinder mounted to be rotated end over end, in combination with a printinglamp mounted within the cylinder and extending from end to end thereof.

7. In a printing apparatus, a printing-cylinder, an electrical lamp mounted within the cylinder, an electrical circuit in connection with said lamp, a rotary circuit-connector in said circuit, and means for automatically breaking the circuit at a predetermined time, substantially as described.

8. In a printing apparatus, a printing-cylinder, a lamp within the cylinder, and means for automatically extinguishing the light of said lamp at a predetermined time, substantially as described.

9. In a printing apparatus, a printing-cylinder, a printing-lamp remaining at all times in the same relative position with respect to the cylinder, and means to automatically discontinue the printing process.

10. In a printing apparatus, the combination with a printing-cylinder, of a printinglamp mounted centrally within the cylinder and held at the ends, an electrical circuit in connection with said lamp,andmeansforautomatically discontinuing the printing process.

l1. In a printing apparatus, a rotatablymounted printing-frame, a lamp mounted within said frame and rotatable therewith, and means for discontinuing the printing process at a predetermined time.

12. In a printing apparatus, a rotatablymounted printing frame, a lamp mounted within said frame, bars mounted in the ends of the frame in which said lamp is detachably held, and means for automatically extinguishing the light of said lamp to discontinue the printing process.

13. In a printing apparatus, a rotatable printing-frame, a lamp mounted therein and rotatable in unison with the frame, and a switch to automatically extinguish the light of said lamp at a predetermined time.

14. In a printing apparatus, a printing-cylinder, a lamp mounted within the cylinder and extending from end to end ot' the same, and a switch for automatically extinguishing the light of said lamp at a predetermined time.

15. In a printing apparatus, a printing-cylinder, an electric lamp mounted in said cylinder, an electric circuit to said lamp, and controlling means including a fluid-regulating cylinder and a switch, the latter to automatically break the circuit on the completion of the printing process.

1G. In a printing apparatus, a rotatablymounted printing-cylinder, supports in which the cylinder is mounted, a lamp in said cylinder, and means supported on the frame or standards for controlling the circuit.

17. In a printing apparatus, a rotatablymounted printing-frame, supports on which the frame is mounted, a lamp rotatable in unison with said frame, and controlling means for the lamp mounted on the support of the frame, substantially as described.

In testimony whereof I afiix my signature in the presence of two witnesses.

REINIIOLD HERMAN.

Titnessesz A. M. WILsoN, F. W. WILSON.

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